Wrench.



PATENTED JULY 2, 1907. A. L. MOSS.

WRENCH.

APPLIOATION FILED DBO. 21, 1906.

2 SHEETS-SHEET 1.

INVENTOH ail llSZilJZ,./b55

YWI/ A TTOHNEYS No. 858,894. PATENTED JULY 2, 1907. A. L. MOSS.

WRENCH.

APPLIOATION nun 1:20.21, 1900.

2 SHEETS-SHBET 2.

Mllllllllllllllllllllllll WITNESSES INVENTOH fluyusl usl .Mass

A TTOH'NE Y8 mmwo AUGUSTUS LEICESTER MOSS, OF SANDUSKY, OHIO.

WRENCH.

Specification of Letters Patent.

Patented July 2, 1907.

Application filed Deoember 21,1906. Serial so. 348,964.

To all whom it may concern:

Be it known that I, Auous'rus Lnrcns'rnn Moss, a citizen of the UnitedStates, and a resident of Sandusky, in the county of Erie and State ofOhio, have invented a new and Improved Wrench, of which the following isa full, clear, and exact description.

The invention relates to wrenches. such as shown and described in theapplication for Letters Patent of the United States, No. 341,557, filedby me November 1,1906.

The object of the present invention is to provide a new and improvedwrench, more especially designed for turning nuts, screws and otherarticles in places not easily accessible by ordinary wrenches.

The invention consists of novel features and parts and combinations ofthe same, which will be more fully described. hereinafter and thenpointed out in the claims.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a plan view of the improvement; Fig. 2 is a sectional planview of the same;.Fig. 3 is a cross section of the same on the line 33of Fig. 1; Fig. 4 is an end elevation of the handle and its connectionwith the worm shaft; Fig. 5 is a like View of the same showing the partsin a different position; Fig. 6 is a side elevation of one of theinterchangeable sockets, and Fig. 7 is a perspective view of a tooladapted to be applied to the interchangeable socket. I

The stock A is provided with a seat A for the head B to turn in, and onthe peripheral-surface of the said head are integrally formed spiralgear teeth B in mesh with correspondingly shaped teeth on anintermediate gear wheel 0 mounted to rotate on a stud 0 held on thestock A. The intermediate gear wheel 0 is in mesh with a worm D havingits shaft D journaled in suitable bearings arranged in the stock A, asplainly indicated in Fig. 2, and the said shaft D is adapted to beturned in either direction by the operator turning a tubular handle orsleeve E mounted to turn loosely on the outer end of the stock A. f

In order to connect the handle E with the shaft D a pawl and ratchetmechanism is provided consisting ,of a pawl F mounted to slide in abearing E formed on the handle E, and the said pawl is adapted to engagea toothed wheel F secured on the outer end of the shaft D. The pawlF ispressed on by a spring 1? and is V-shaped and adapted to be given a halfturn, so as to engage the pawl with the teeth of the wheel F in eitherof two positions, as illustrated in Figs. 4 and 5, to turn the shaft Din the desired direction on turning the handle E correspondingly. Inorder to hold the pawl F in either of the two positions mentioned a pinF is provided extending transversely through the pawl F and adapted tobe seated in a slot E formed on the outer end of the bearing F/. Theouter end of the pawl F is provided with a suitable handle F adapted tobe taken hold of by the operator for pulling the pawl F outward againstthe tension of the spring F and moving the pin F out of the slot E topermit turning of the pawl F to the desired position, after which thepawl is released to allow the spring F to move the pawl inward inengagement with the teeth of the wheel F. l

' N 0w when the pawl F is in the position shown in Fig.

4 and the handle is turned in the direction of the arrow a, then theshaft D is turned in a like direction owing to the connection of thepawlF with the wheel F, and when the operator turns the handle E in thereverse direction then the pawl F simply glides over the teeth of thewheel F without turning the same.

When the pawl F has been turned to the position shown in Fig. 5 and thehandle E is turned in the direction of the arrow 1), then the shaft D isturned in alike direction, and when the handle E is turned in the re-'verse direction then the pawl F simply glides over the teeth of thewheel F without turning the latter. Now when the shaft D is turned ineither of the two directions mentioned, then the worm D turns theintermediate gear wheel 0 which by the gear teeth B rotates. the head Bin the desired direction, that is, according to the direction in whichthe handle E is turned and the position of the pawl F relative to thetoothed wheel F.

The handle E is provided with spaced apertures E for engagement by aspanner G or a similar lever arm, for turning the sleeve E in eitherdirection but with more power than could be exerted by the operatortuming the handle E by hand.

The head B is provided with a polygonal recess B for engaging a nut orlike article of similar size, but when it is desired to engage a nut ora like article of a different size then use is made of interchangeableheads 11, such as illustrated in Figs. 3 and 6, each head H having apolygonal recess H for engaging the nut or other article to be turned.

- The interchangeable head H is provided with a po- ,lygonal ofiset Hadapted to fit the correspondingly shaped recess B in the main head B,and the polygonal offset 11 terminates in a cylindrical offset Hprovided with an annular groove H adapted to be engaged by a catch Imounted to slide in suitable guideways arranged on the stock A, thecatch being pressed inward by a spring I so as to hold the catch inengagement with the annular groove H The catch I is provided with asuitable handle I under the control of the'operator, for moving thecatch in or out of engagement with the annular groove E". New byreference to Fig. 3 it will be seen that the cylindrical offset 11extends through a corresponding opening in the stock A and is adapted tobe engaged by the spring catch I to hold the interchangeable head H inposition in the main head B, and when the wrench is used and the mainhead B is turned as above explained, then a like turning motion is givento the interchangeable head H to turn the nut or other article engagedbythe head H.

As shown in Fig. 7 a screw driver I or the like may be engaged with the,recess H in the head H, to turn the said screw driver on the operatorturning the handle E.

It is understood that a set of interchangeable heads H may be used, eachhaving the same polygonal offset H but different sized recesses, eachinterchangeable head, however, fitting into the head B of the main headB.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A wrench comprising a stock, a main head mounted to turn therein andhaving a polygonal recess, an interchangeable head having a polygonalrecess and a polygonal offset fitting the recess in the said main head,the said assess 2. A wrench comprising a stock, a main head mounted toturn ln the said stock and having means for engaging the article to beturned, a gear wheel integral on the peripheral face of the said mainhead, an intermediate gear wheel ,iournaled in the said stock, a wormwheel in mesh with the said intermediate gear wheel, a handle mounted toturn on the said stock, and a reversible pawl and ratchet connectionbetween the said handle and the shaft of the said worm wheel.

3. A wrench comprising a stock, a main head mounted to turn in the saidstock and having means for engaging the article to be turned, a gearwheel integral on the peripheral face of the said main head, anintermediate gear wheel jo'urnalcd in the said stock, a worm wheel inmesh with the said intermediate gear wheel, a handle mounted to turn onthe said stock and having means for the npnlt cation of a hand lever toturn the handle, and a'revcrslhle pawl and ratchet connection betweenthe said handle and the shaft of the said worm wheel.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

AUGUSTUS LEICESTER M 035.

Witnesses 'lnno. G. Ilosrnn, JNo. M. Rm'rsn.

